METHOD FOR RECOGNITION OF SIGNALS WITH PHASE MANIPULATION UNDER CONDITIONS OF MULTI-BEAM DISTRIBUTION Russian patent published in 2006 - IPC H04L27/18 

FIELD: technology for recognizing radio-signals, in particular, methods for detecting type and modulation parameters of radio signals.

SUBSTANCE: for realization of method during recognition received radio signal is digitized by time and quantized by level. Value of bearing and clock frequencies of signal are determined and cophased and quadrature components of radio signal are formed. These are then filtered and selection counts of cophased and quadrature components of radio signal are selected, taken in counting time moments, determined by value of clock frequency. After that, selection counts of cophased and quadrature components of radio signal are corrected in complex form, using gradient algorithm for adjusting corrector coefficients. Then estimate of selections is split onto given number of clusters, equal to position coefficient of recognized signals, and values of clusterization error functional are calculated, received values are compared and decision is taken about relation to class by minimum of error functional value.

EFFECT: increased probability of correct recognition under multi-beam conditions.

5 cl, 9 dwg